<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>02_径向渐变</title>
    <style> 
        .box {
            width: 300px;
            height: 200px;
            border: 1px solid black;
            float: left;
            margin-left: 50px;
            font-size: 20px;
            margin-top: 20px;
        }
        .box1 {
            background-image: radial-gradient(red,yellow,green);
        }
        .box2 {
            background-image: radial-gradient(at right top,red,yellow,green);
        }
        .box3 {
            background-image: radial-gradient(at 100px 50px,red,yellow,green);
        }
        .box4 {
            background-image: radial-gradient(circle,red,yellow,green);
        }
        .box5 {
            background-image: radial-gradient(200px 200px,red,yellow,green);
        }
        .box6 {
            background-image: radial-gradient(red 50px,yellow 100px,green 150px);
        }
        .box7 {
            background-image: radial-gradient(100px 50px at 150px 150px,red 50px,yellow 100px,green 150px);
        }
    </style>
</head>
<body>
    <div class="box box1">默认情况</div>
    <div class="box box2">通过关键词调整径向渐变圆的圆心</div>
    <div class="box box3">通过像素值调整径向渐变圆的圆心</div>
    <div class="box box4">通过circle关键字调整为正圆</div>
    <div class="box box5">通过像素值调整为正圆</div>
    <div class="box box6">调整径向渐变的区域</div>
    <div class="box box7">综合写法</div>
</body>
</html>